.Ornamental fish feedstuff: FD Shrimp, FD Bloodworm, FD Water Earthworm (Tubifex), FD Moliter (Mealworm), FD Cricket, FD Grasshopper and so on.

观料：虾、红虫、丰年虾、水蚯蚓、面包虫、蟋蟀、草蜢等。

Four feedstuffs in common use (maise, soybean meal, rapeseed meal and fish meal) water activity adsorption isotherms and laws in quality change of mouldy were researched in this paper.

本试验究了四种料原料(玉米、豆粕、菜粕、粉)水活性等温线及霉变后品质变化规律。